According to FlightAware.com, airports in Atlanta,
Dallas, and Charlotte have taken the bulk of the hit so far.
Delta and American Airlines have cancelled the most flights —
more than 550 between them.

Airlines have already cancelled 1,700 flights scheduled for
Wednesday, when the storm is supposed to move up the East Coast.

FlightAware's Misery Map shows how delays and cancellations ripple
across the country. So far, the damage isn't too bad: